255115500 has 96 divisors (see below), whose sum is σ = 757149120. Its totient is φ = 66726400.

The previous prime is 255115493. The next prime is 255115501. The reversal of 255115500 is 5511552.

255115500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (255115501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77896 + ... + 81104.

It is an arithmetic number, because the mean of its divisors is an integer number (7886970).

Almost surely, 2^255115500 is an apocalyptic number.

255115500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255115500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (378574560).

255115500 is an abundant number, since it is smaller than the sum of its proper divisors (502033620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

255115500 is a wasteful number, since it uses less digits than its factorization.

255115500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3284 (or 3272 counting only the distinct ones).

The product of its (nonzero) digits is 1250, while the sum is 24.

The square root of 255115500 is about 15972.3354585358. The cubic root of 255115500 is about 634.2282976712.

The spelling of 255115500 in words is "two hundred fifty-five million, one hundred fifteen thousand, five hundred".